function syncSelected(obj,correspondingobj){
	if(obj.type == "checkbox"){
		if(obj.checked){
			if(!(parseInt(correspondingobj.value) >= 1))
				correspondingobj.value = 1;
		}else
			correspondingobj.value = 0;
	}else{
		if(isNaN(obj.value)){
			obj.value = 1;
			correspondingobj.checked = true;
		}else{
			if(obj.value > 0)
				correspondingobj.checked = true;
			else
				correspondingobj.checked = false;
		}
	}
}

sfHover = function() {
	var sfEls = document.getElementById("leftNav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);